Expansible advanced pipe roof suitable for mining method soft soil tunnel (Chinese)
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- New search for: WANG SHENGHUA
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2020
- Patent / Electronic Resource
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Title:Expansible advanced pipe roof suitable for mining method soft soil tunnel
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Additional title:一种适用于矿山法软土隧道的伸缩超前管棚
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Patent number:CN111502699
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Patent applicant:
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Patent family:
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Contributors:WANG SHENGHUA ( author ) / ZHENG ZHAOYI ( author ) / ZHANG WEN ( author ) / HOU DENGGAO ( author ) / WANG YUNBO ( author ) / XU BAOZHI ( author )
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Publisher:
- New search for: Europäisches Patentamt
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Publication date:2020-08-07
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
- New search for: E21D
- Further information on International Patent Classification
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Classification:
IPC: E21D SHAFTS, Schächte -
Source: